BR9917381B1 - Processo e aparelho para determinar características de componentes de um canal de comunicação por satélite - Google Patents

Processo e aparelho para determinar características de componentes de um canal de comunicação por satélite Download PDF

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Publication number
BR9917381B1
BR9917381B1 BRPI9917381-6A BR9917381A BR9917381B1 BR 9917381 B1 BR9917381 B1 BR 9917381B1 BR 9917381 A BR9917381 A BR 9917381A BR 9917381 B1 BR9917381 B1 BR 9917381B1
Authority
BR
Brazil
Prior art keywords
signal
carrier
communication channel
level
pseudo noise
Prior art date
Application number
BRPI9917381-6A
Other languages
English (en)
Portuguese (pt)
Other versions
BR9917381A (pt
Inventor
Gerhard Bethscheider
Guy Harles
Original Assignee
Ses Astra Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ses Astra Sa filed Critical Ses Astra Sa
Priority to BRPI9917381-6A priority Critical patent/BR9917381B1/pt
Publication of BR9917381A publication Critical patent/BR9917381A/pt
Publication of BR9917381B1 publication Critical patent/BR9917381B1/pt

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18519—Operations control, administration or maintenance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Electromagnetism (AREA)
  • Radio Relay Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
BRPI9917381-6A 1999-06-18 1999-06-18 Processo e aparelho para determinar características de componentes de um canal de comunicação por satélite BR9917381B1 (pt)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI9917381-6A BR9917381B1 (pt) 1999-06-18 1999-06-18 Processo e aparelho para determinar características de componentes de um canal de comunicação por satélite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRPI9917381-6A BR9917381B1 (pt) 1999-06-18 1999-06-18 Processo e aparelho para determinar características de componentes de um canal de comunicação por satélite
PCT/EP1999/004241 WO2000079708A1 (en) 1999-06-18 1999-06-18 Method and apparatus for determining characteristics of components of a communication channel

Publications (2)

Publication Number Publication Date
BR9917381A BR9917381A (pt) 2002-03-26
BR9917381B1 true BR9917381B1 (pt) 2014-05-20

Family

ID=8167339

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9917381-6A BR9917381B1 (pt) 1999-06-18 1999-06-18 Processo e aparelho para determinar características de componentes de um canal de comunicação por satélite

Country Status (14)

Country Link
US (1) US6934314B2 (de)
EP (1) EP1186126B1 (de)
JP (1) JP4197869B2 (de)
AT (1) ATE302509T1 (de)
AU (1) AU763129C (de)
BR (1) BR9917381B1 (de)
CA (1) CA2375846C (de)
CY (1) CY1105261T1 (de)
DE (1) DE69926808T2 (de)
DK (1) DK1186126T3 (de)
EA (1) EA004457B1 (de)
ES (1) ES2251835T3 (de)
HK (1) HK1041377B (de)
WO (1) WO2000079708A1 (de)

Families Citing this family (23)

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WO2002043287A1 (en) * 2000-11-24 2002-05-30 Nokia Corporation Component measures
US7423987B2 (en) 2001-04-27 2008-09-09 The Directv Group, Inc. Feeder link configurations to support layered modulation for digital signals
US7209524B2 (en) * 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
US7151807B2 (en) * 2001-04-27 2006-12-19 The Directv Group, Inc. Fast acquisition of timing and carrier frequency from received signal
US7471735B2 (en) 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7778365B2 (en) 2001-04-27 2010-08-17 The Directv Group, Inc. Satellite TWTA on-line non-linearity measurement
US7184489B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Optimization technique for layered modulation
US8005035B2 (en) 2001-04-27 2011-08-23 The Directv Group, Inc. Online output multiplexer filter measurement
US7184473B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7583728B2 (en) 2002-10-25 2009-09-01 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7822154B2 (en) 2001-04-27 2010-10-26 The Directv Group, Inc. Signal, interference and noise power measurement
DE10130687A1 (de) 2001-06-26 2003-01-02 Rohde & Schwarz Meßsystem mit einem Referenzsignal zwischen einem Signalgenerator und einem Signalanalysator
ES2604453T3 (es) 2002-07-03 2017-03-07 The Directv Group, Inc. Método y aparato para modulación en capas
AU2003301717A1 (en) 2002-10-25 2004-05-25 The Directv Group, Inc. Lower complexity layered modulation signal processor
AU2003282854A1 (en) * 2002-10-25 2004-05-25 The Directv Group, Inc. Method and apparatus for tailoring carrier power requirements according to availability in layered modulation systems
CA2503532C (en) * 2002-10-25 2011-03-01 The Directv Group, Inc. Estimating the operating point on a nonlinear traveling wave tube amplifier
US7463676B2 (en) * 2002-10-25 2008-12-09 The Directv Group, Inc. On-line phase noise measurement for layered modulation
WO2004110078A2 (en) * 2003-05-30 2004-12-16 Efficient Channel Coding, Inc. Receiver based saturation estimator
US20050175119A1 (en) * 2004-02-09 2005-08-11 Worley David A. Forward link quality link monitoring apparatus and method
US7221704B2 (en) 2005-08-01 2007-05-22 Marvell World Trade Ltd. All digital implementation of clock spectrum spreading (dither) for low power/die area
EP2228916A1 (de) * 2009-03-12 2010-09-15 Astrim Limited Interferenzunterdrückung
EP2413524B1 (de) * 2010-07-28 2013-01-16 Telefonaktiebolaget L M Ericsson (PUBL) Verfahren und Vorrichtung zur Bestimmung von Signalpfadeigenschaften
CA2913564A1 (en) * 2015-11-27 2017-05-27 Telesat Canada Satellite communications subsystem in-orbit verification system and methodologies

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637017A (en) * 1984-05-21 1987-01-13 Communications Satellite Corporation Monitoring of input backoff in time division multiple access communication satellites
DE3644175A1 (de) * 1986-12-23 1988-07-14 Messerschmitt Boelkow Blohm Verfahren zur uebertragung von daten mit satelliten
US5546421A (en) * 1994-08-22 1996-08-13 Martin Marietta Corp. Self compensating spread-spectrum hybrid
US5799005A (en) * 1996-04-30 1998-08-25 Qualcomm Incorporated System and method for determining received pilot power and path loss in a CDMA communication system
DE69701473T2 (de) * 1997-12-18 2000-08-03 Europ Des Satellites Betzdorf Verfahren und Vorrichtung zur Festlegung eines Arbeitspunktes eines nichtlinearen Verstärkers in einem Übertragungskanal
DE69711408T2 (de) * 1997-12-18 2002-11-21 Soc Europ Des Satellites Sa Verfahren und Apparat zur Bestimmung der Kennwerte von Komponenten eines Kommunikationskanals unter Last

Also Published As

Publication number Publication date
AU763129B2 (en) 2003-07-17
DK1186126T3 (da) 2006-01-02
AU4613699A (en) 2001-01-09
DE69926808D1 (de) 2005-09-22
JP2003502935A (ja) 2003-01-21
CA2375846A1 (en) 2000-12-28
ES2251835T3 (es) 2006-05-01
JP4197869B2 (ja) 2008-12-17
EA200200054A1 (ru) 2002-06-27
US6934314B2 (en) 2005-08-23
CY1105261T1 (el) 2010-03-03
WO2000079708A1 (en) 2000-12-28
ATE302509T1 (de) 2005-09-15
EP1186126B1 (de) 2005-08-17
CA2375846C (en) 2008-11-04
BR9917381A (pt) 2002-03-26
HK1041377B (zh) 2006-04-07
HK1041377A1 (en) 2002-07-05
US20020094015A1 (en) 2002-07-18
AU763129C (en) 2004-02-19
DE69926808T2 (de) 2006-06-29
EA004457B1 (ru) 2004-04-29
EP1186126A1 (de) 2002-03-13

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 20/05/2014, OBSERVADAS AS CONDICOES LEGAIS.